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A207397 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 11
5 74
6 557
7 4799
8 47004
9 516717
10 6302993
11 84502346
12 1235198136
13 19552296646
14 333212892221
15 6083009119262
16 118433569748072
17 2449663066933397
18 53643715882853914
19 1239875630317731463
20 30163779836127304106
21 770476745704778418686

[1,1,1,2,11,74,557,4799,47004,516717,6302993,
 84502346,1235198136,19552296646,333212892221,
 6083009119262,118433569748072,2449663066933397,
 53643715882853914,1239875630317731463,
 30163779836127304106,770476745704778418686]

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Last modified June 3 00:27 EDT 2024. Contains 373054 sequences. (Running on oeis4.)